28.02.23, 10:03 +0100, Alberto:
I see that almost all attacks do not have a valid FQDN, so I have set the "reject_non_fqdn_helo_hostname" directive in "smtpd_helo_restrictions" directive, which I see is in a previous phase, to reject it beforehand.However, it has no effect. The attacks continue to occur in the same way, and are rejected at the same point. Can you explain to me, why this happens?
Probably: https://www.postfix.org/SMTPD_ACCESS_README.html#timing -- Regards mks
